Пример #1
0
static void thread_func(void *userdata) {
    struct userdata *u = userdata;

    pa_assert(u);
    pa_assert(u->sink || u->source);

    pa_log_debug("Thread starting up");

    if (u->core->realtime_scheduling)
        pa_make_realtime(u->core->realtime_priority);

    pa_thread_mq_install(&u->thread_mq);

    for (;;) {
        int ret;
        pa_bool_t need_timer = FALSE;

        if (u->sink) {
            if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
                pa_sink_process_rewind(u->sink, 0);

            if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
                do_write(u);
                need_timer = TRUE;
            }
        }

        if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) {
            do_read(u);
            need_timer = TRUE;
        }

        if (need_timer)
            pa_rtpoll_set_timer_relative(u->rtpoll, u->poll_timeout);
        else
            pa_rtpoll_set_timer_disabled(u->rtpoll);

        /* Hmm, nothing to do. Let's sleep */
        if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
            goto fail;

        if (ret == 0)
            goto finish;
    }

fail:
    /* If this was no regular exit from the loop we have to continue
     * processing messages until we received PA_MESSAGE_SHUTDOWN */
    pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
    pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);

finish:
    pa_log_debug("Thread shutting down");
}
Пример #2
0
int main(int argc, char *argv[]) {
    pa_rtpoll *p;
    pa_rtpoll_item *i, *w;
    struct pollfd *pollfd;

    p = pa_rtpoll_new();

    i = pa_rtpoll_item_new(p, PA_RTPOLL_EARLY, 1);
    pa_rtpoll_item_set_before_callback(i, before);
    pa_rtpoll_item_set_after_callback(i, after);

    pollfd = pa_rtpoll_item_get_pollfd(i, NULL);
    pollfd->fd = 0;
    pollfd->events = POLLIN;

    w = pa_rtpoll_item_new(p, PA_RTPOLL_NORMAL, 0);
    pa_rtpoll_item_set_before_callback(w, worker);

    pa_rtpoll_set_timer_relative(p, 10000000); /* 10 s */

    pa_rtpoll_run(p, 1);

    pa_rtpoll_item_free(i);

    i = pa_rtpoll_item_new(p, PA_RTPOLL_EARLY, 1);
    pa_rtpoll_item_set_before_callback(i, before);
    pa_rtpoll_item_set_after_callback(i, after);

    pollfd = pa_rtpoll_item_get_pollfd(i, NULL);
    pollfd->fd = 0;
    pollfd->events = POLLIN;

    pa_rtpoll_run(p, 1);

    pa_rtpoll_item_free(i);

    pa_rtpoll_item_free(w);

    pa_rtpoll_free(p);

    return 0;
}